Design for survivability: a tradeoff space

  • Authors:
  • Axel Krings

  • Affiliations:
  • University of Idaho, Moscow, ID

  • Venue:
  • Proceedings of the 4th annual workshop on Cyber security and information intelligence research: developing strategies to meet the cyber security and information intelligence challenges ahead
  • Year:
  • 2008

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Abstract

When designing a system that has strong reliability, security, or survivability requirements one moves in a trade-off space with a delicate balance between causes and effects that have implications on various objective functions such as cost, performance, availability, analyzability, predictability, or feasibility. The key issues are: 1) given an existing system or application, what are the impacts of adjustments in the fault assumptions, 2) given an existing system or application, what are the impacts of adding or subtracting security features, and 3) given performance, availability, security, or survivability requirements, how can one determine feasibility based on the infrastructure- or application-induced limitations. This research promotes design for survivability and analyzability to allow for effective assessment of the trade-off space from the view of dynamically changing fault models and the analyzability of a system. It gives pointers to new research directions and presents solutions that aid in making operational decisions or assessing impacts of design decisions.